5FKC:
reference: Structural analysis of beta-fructofuranosidase from Xanthophyllomyces dendrorhous reveals unique features and the crucial role of N-glycosylation in oligomerization and activity., Ramirez-Escudero M, Gimeno-Perez M, Gonzalez B, Linde D, Merdzo Z, Fernandez-Lobato M, Sanz-Aparicio J, J Biol Chem. 2016 Jan 28. pii: jbc.M115.708495. PMID: 26823463

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